杨勇,陈宇海,唐伟清,黄俊,罗军明

• 1:航空工业成都飞机工业(集团)有限责任公司
• 2:南昌航空大学材料科学与工程学院

摘要(Abstract)：

通过激光冲击强化(LSP)处理在7050铝合金表面制备细晶粒过渡层,再采用微弧氧化(MAO)制备LSP-MAO复合涂层,研究了7050铝合金表面微弧氧化涂层及LSP-MAO复合涂层的显微组织、相结构、耐蚀和耐磨性能。结果表明:激光冲击强化处理后,7050铝合金表层晶粒细化,从而降低了微弧氧化过程中阳极激活所需要的能量,加速了微弧氧化涂层的形成。相比传统微弧氧化涂层,LSP-MAO涂层的微孔更加细小,分布更加均匀,涂层和基体的结合力更好。随着激光冲击强化次数的增加,涂层的致密度呈现先增加后减少的趋势。LSP-MAO涂层的耐蚀性和耐磨性均优于MAO涂层,激光冲击强化3次时涂层的耐蚀和耐磨性最好。

关键词(KeyWords)： 7050铝合金;激光冲击强化;微弧氧化;耐蚀性;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51704167)

作者(Author): 杨勇,陈宇海,唐伟清,黄俊,罗军明

DOI: 10.13289/j.issn.1009-6264.2021-0365

参考文献(References)：

• [1] 王磊，易幼平，黄始全，等.固溶前深冷变形处理对7050铝合金组织和性能的影响[J].材料导报，2019,33(20):3467-3471.WANG Lei,YI You-ping,HUANG Shi-quan,et al.Effect of cryogenic deformation treatment before solid solution on microstructure and properties of 7050 aluminum alloy[J].Materials Reports,2019,33(20):3467-3471.
• [2] 李培跃，熊柏青，张永安，等.7050铝合金淬火特性与微观组织[J].中国有色金属学报，2011,21(3):513-521.LI Pei-yue,XIONG Bai-qing,ZHANG Yong-an,et al.Hardenability characteristic and microstructure of 7050 Al alloy[J].The Chinese Journal of Nonferrous Metals,2011,21(3):513-521.
• [3] Ma C Q,Hou L G,Zhang J S,et al.Effect of deformation routes on the microstructures and mechanical properties of the asymmetrical rolled 7050 aluminum alloy plates[J].Materials Science and Engineering A,2018,773:304-315.
• [4] 刘浩，孔德军，王进春.微弧氧化对7475铝合金盐雾腐蚀性能的影响[J].材料热处理学报，2016,37(2):191-197.LIU Hao,KONG De-jun,WANG Jin-chun.Effect of micro arc oxidation on salt spray corrosion properties of 7475 aluminum alloy[J].Transactions of Materials and Heat Treatment,2016,37(2):191-197.
• [5] 徐明波，黄小波，高玉魁.锆合金微弧氧化后喷丸致密化研究[J].表面技术，2020,49(4):238-244.XU Ming-bo,HUANG Xiao-bo,GAO Yu-kui.Corrosion behaviors of nanocrystalline and conventional polycrystalline copper[J].Surface Technology,2020,49(4):238-244.
• [6] 王树棋，王亚明，邹永纯.微弧氧化涂层微纳米孔调控及功能化应用研究进展[J].表面技术，2021,50(6):1-22.WANG Shu-qi,WANG Ya-ming,ZOU Yong-chun,et al.Generation,tailoring and functional applications of micro-nano pores in microarc oxidation coating:a critical review[J].Surface Technology,2021,50(6):1-22.
• [7] 朱学军，柴朵.发动机用TC17合金喷丸+微弧氧化涂层组织和疲劳性能分析[J].材料保护，2020,53(8):55-58.ZHU Xue-jun,CHAI Duo.Microstructure and fatigue analysis of coatings treated by shot peening and micro-arc oxidation on TC17 alloy for engine applications[J].Materials Protection,2020,53(8):55-58.
• [8] 罗军明，陈宇海，黄俊，等.喷丸处理对微弧氧化后TC4合金疲劳性能的影响[J].中国有色金属学报，2019,29(6):1-9.LUO Jun-ming,CHEN Yu-hai,HUANG Jun,et al.Effect of shot peening and micro-arc oxidation on microstructure and fatigue properties of TC4 titanium alloy[J].The Chinese Journal of Nonferrous Metals,2019,29(6):1-9.
• [9] 任超，罗军明，陈宇海，等.喷丸对TC4合金微弧氧化涂层磨损和腐蚀行为的影响[J].材料导报，2020,34(9):18081-18085.REN Chao,LUO Jun-ming,CHEN Yu-hai,et al.Effect of shot peening on wear and corrosion behavior of micro-arc oxidation coating of TC4 alloy[J].Materials Reports,2020,34(9):18081-18085.
• [10] Kalainatha S P.Recent development and future perspectives of low energy laser shock peening[J].Optics Communications,2016,81:137-144.
• [11] Wu J F,Zou S K,Gong S L,et al.Over peening effect of Al 7050 mid-thick plates with continued multiple laser shock peening impacts at the same position[J].Rare Metal Materials and Engineering,2020,49(10):3395-3401.
• [12] Zhang C,Song J,Jiang L,et al.Fabrication and tribological properties of WC-TiB2 composite cutting tool materials under dry sliding condition[J].Tribology International,2017,109:97-103.
• [13] Sharma S,Sangal S,Mondal K.On the optical microscopic method for the determination of ball-on-flat surface linearly reciprocating sliding wear volume[J].Wear,2013,300(1/2):82-89.
• [14] 陈栋.微弧氧化过程中裂纹和孔洞的形成方式及超声波影响的研究[D].秦皇岛：燕山大学，2018.CHEN Dong.Study on the formation mechanism of cracks and holes during micro-arc oxidation and the effects of ultrasonic waves[D].Qinhuangdao:Yanshan University,2018.
• [15] Jelliti S,Richard C,Retraint D,et al.Effect of surface nanocrystallization on the corrosion behavior of Ti-6Al-4V titanium alloy[J].Surface and Coatings Technology,2013,224:82-87.
• [16] Yu J K,Han E H,Lu L,et al.Corrosion behaviors of nanocrystalline and conventional polycrystalline copper[J].Journal of Materials Science,2005,40(4):1019-1022.

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